Carbureter.



B. P. BROOKS.

V v APPLICA'ILLI'ET FILED I'JLE' 28, 1509.

14V VEN T OR.

Aug. 2, 1910.

Patented s u s E N. w n

UNITED s'rarnsrntrnnzr OFFICE.

EVEBT 1. BROOKS, OF CINCINNATI. OHIO. ASSIGNOR, BY DIRECT AND MESZKI ASSIGN- KENTS, OI ONE-THIRD TO CHARLES A. GIBSON AND ONE-THIRD T0 JOHN RENEE,

53., BOTH 0F CINCINNATI, OHIO.

CABBUBETEB.

Specification of Letters Patent.

Patented Aug. 2, 1910.

Application filed July 28. 1909. Serial R0. $10.10

'' of this specification.

This invention relates to carbureters of the type that are used in connection with ex loslon engines, the invention having re crence particularly to a reservoir and to the apparatus for admitting and controlling the air to be carbnreted, and to apparatus for feedingthe gasolene or similar hydrocarbon from the reservoir to produce the ex losive mixture for the engines.

bjects of the invention are to provide an improved curbureter of the above-mentioned character that will be adapted to be constructed compactly, and at relatively small expense, and be ada ted to be operated reliably. and with the ighest etliciency under varied conditions required. and be durable and economical in use.

The invention consists in an improved carbureter comprising a feed reservoir having vaporizing and mixing apparatus therein of novel construction, and an air inlet valve of novel construction and arrangement mounted on the reservoir, the reservoir having a duct therein through which the explosive mixture is conducted from the vapoof the line (l (l in Fig. 3:

rizing apparatus out thronghlhe reservoir", and the invention consists further in the novel parts, and combinations and arrange- ,ments of parts, as hereinafter particularly ,described and then defined in the appended claims. 1

Referring to the drawings, Figure 1 is a top plan of the improved curhurcter; Fig. 2, a vertical central sectional view thereof; Fig. 3, a horizontal sectional view on the plane of the line A. A in Fig. 2; Fig. 4, a fragmentary sectional view on the plane of the line B B in Fig. 2 hxikingupwardz Fig. 5, a fragmentary sectional view on the plane Fig. 8, a vertical central sectional view omitting some of the parts of the carbureter on a plane. at right angles to the plane of the section on which F ig. 2 is taken; and Fig. 7, a perspective view of one of the vaporizing devices of the carburetor.

In the drawings like parts or features of construction are indicated by similar reference characters throughout the several figures.

As preferably constructed the invention comprises a reservoir having a side wall 1 and a bottom 1' in which is an aperture 1",

the wall 1 having a horizontal tube 2 c0n- ,nccted thereto and extending inward, the

tube having a vertical branch 3 that has a flaring portion 4 from which extends a cylindrical portion 5 that terminates approximately at the plane of the top of the wall 1, the reservoir having a cover 6 that is seated on the wall 1 and also on the to of the cylindrical portion 5 of the. tube v ich forms a through the. reservoir. The cover 6 has a central aperture 7 therein of somewhat less diameter than that of the cylindrical portion 5, the latter having internal screwthreads 8 therein. the wall 1 outward in alinement with the horizontal tube 2 and has a valve-body 9 thereon from which extends a tube 10 adaptcd to be connected with an engine or a pipe,

the valve-body having a valve-plug 11 thereon. The tube 2 has an aperture 2" in the lower portion thereof, in which is secured the lower end of a vertical feed tube 13 having a vaporizing feed-head 14 on its upper end, the feed-head having a conical top 14' in the apex of which is a relatively Small aperture 15 for the escape of gasolene. The top of the feed-head has an annular trough that extends along the periphery at the base thereof which serves to assist in vaporizing the gasolene and in cnrhureting the air, and it serves also to catch and retain a small quantity of gusolene that may escape from the aperture 15 after the. eng ne has stopped. to be utilized in case the engine is again started before the gasolene evaporates. A bushing 17 is inserted in the aperture 1", and a valve stem 18 is screwed unto the bushing and extends up through the A tube 2' extends from 80 vaporizing tube and conduit 75 feed tube 13 and has a feed-valve 19 on its upper end to cotiperate with the inner side 0 the teed-head 14 for regulating the flow of gasol'ene from the aperture 15, the lower end of the valvestem having an operating stem 20 thereon provided with a packingnut 21- and a acking 22 connected with the bushing 17 that is adapted to serve as a packing-box.

An inlet tube 9.3 extends from the bottom 1 upward near the inner side of the wall 1 and has an outlet opening 2-1 in its side, a tube .25 extending from the outer side of the bottom in alinement with the tube 23 and adapted to have a supply-pipe connected thereto, the interior of the tube having a valve-seat 25 therein. A valve-stem 26 is inserted in the tubes and has an inlet valve 21' on its lower end to operate on the seat 25, the upper end of the stem 96 preferably having a relatively large head 28 thereon to serve as a weight for seating the valve. A bracket 29 is attached to the inner side of the wall 1 by a securing device 30, and a lever 31 is connected to the bracket by a pivot 32 and is connected also to the head 28 by a. pivot 33, the lever having two arms 34 and 3t that extend in opposite directions toward the wall 1 and partially about the upright portions of the vaporizing tube to the under side of an annular float 35 that extendsabout the cylindrical portion 5, the arrangement being such that when the float rises on the liquid in the reservoir to the desired height the valve 27 will close automatically, and when the float descends the valve will open and admit asolene which will be discharged through t e aperture 24 into the reservoir.

The feedhead 14 is situated in the cylindrical portion 5, or a suitable distance above the wall of the flaring portion 4, so that the gasolene will be forced from the conical top against the wall of the tube. The cover 6 is provided with a guide case 36 that is inserted therein above a portion of the float and has a plunger 37 guided therein, a saving 38 being mounted on the bottom of t. 0' case and having its up or end in contact with a collar 39 on the p unger, the latter having a head 40 on its lower end extending from the bottom of the ease downward, so that when it is desired to admit somewhat more than the usual quantity of gasolene into the reservoir the plunger may be pushed down onto the float in order to lift the valve 27 from its seat.

A. tube 4.1 comprising an adjustable airinlupm of the vaporizing tube is inserted thrcuqh the aperture 7 in the cover 6 and has a bell-shapcd lower end 42 which has external sczcwthrcads l3 thereon that en- 1 gage tiesweu-threads 8, whereby the tube is adiufll connected to the inner side of oeassr shaped end portion 49 may be adjusted rel atively to the feed-head 14. A lock-nut 44 is screwed onto the exterior of the tube 41 and is seated upon the cover 6 for retaining the cover on the reservoir. A valvecase -15 is secured to the upper end of the tube 41, being above the cover (5,the case having a relatively small lower end -16 whereby it is connected to the tube. The valve-case has an inwardly extending flange 47 on its upper end, in which are a suitable number of air inlet openings 43, the flange having a valve-seat -19 at its under side and having also an outward extending tubular flange 50 around which extends a plate 51 that is seated on the flange 47 and has air inlet openings 52 therein that normally register with the openings 43, so that the latter may partially closed by adjusting the plate 51 rotatively, a nut 53 being connected to the flange 51') for securely holding the plate 51 when adjusted. The upright flange 50 which comprises an air inlet tube has a bridge 54 therein inwhich is mounted a screw 55 provided with a locknut 56 that is normally seated on the bridge, the screw extending downward and having a guide-stein I? on its lower end. on which is mounted an air inlet valve h to cooperate with the seat 49, the lower end of the guide stem having a spring-seat 59 thereon supporting a spring 0 that engages the under side of the valve for normally holding it to its seat.

The tube 2' preferably has a drip-hole 61 in the lower portion of the wall thereof for the escape of any overflow of gasolene from the feed-head that may occur through ac cident or carelessness, so that overcharging of the engine may be avoided.

In practical use, when the engine is being started and before vacuumproducing suction occurs air is admitted through the opcningsAS and passes through the valvecase andqthe tube 41 and out through the port I2 of. the regulating valve 11, being oarbureted in its passage by the hydro-carbon liquid that escapes from the feed-head l4, and after sufiicicnt. suction is produwd to unseat the valve 58 the larger volume required will be admitted l.hereby and will be drawn forcibly against the conical feedhead and thence against the wall of the flaring portion 4 of the vaporizing tube, being thoroughly carburetcd y the hydro-ca l"- bon liquid. Other results of operation will be readily understood from the foregoing detailed description of the construction of the carbureter.

Havin thus described the invention, what is laimed as new, isa 1. A carburetor including a vertical vap orizing tube, and a feed-tube in the vaporizing tube and havin a hollow combined the cyl -u rical portion 5, so that the bellfeed-head and vaporizing head thereon that and .an outlet opening in the a has a conical upper end and an outlet 0 ning in the apex thereon-the conical end av ing a trough extending about the base thereof. 2. A carbureter including a vertical vaporizing tube having an enlarged portion, a feed-tube extending into the enlarged portion of the vaporizing tube and having a hollow' combined feed-head and vaporizin head thereon that has a conical upper end x thereof, the conical end havin a troug extending about. the base thcreo and a feed-valve in the feed-head and vaporizing-head opposite the o enin 3. X cariureter including a vaporizing tube comprising a vertical portion, a flared portion extending from the vertical portion, and a cylindrical portion extending from the flared portion, the cylindrical portion having screw'threads therein, and a tube havin a bell-shaped end that has screwthrear s thereon engaging the screw-threads of the cylindrical portion, the bell-shaped end bein opposite the fiarin portion; and a feed-tu 0 extending into t e flared ortion and havinga relatively large ho ow disposed head thereon that has a conical en opposite to the bell-shaped "end, the head having an aperture therein.

4. A carbureter includin an "air-inlet tube, a valve-case on the tu a head on the valve-case havin a central alperture therein and also a p urality of re atively small apertures in a circle about the central a erture, the head havin a valve-seat on t e inner side thereof an also a flange on the outer side thereof extending abouttlie central aperture, said flange having external screw-threads thereon, an annular plate extending about the flange on the head and having a plurality pf apertures therein to register with the small .apertures in the head, a nut on the flange engagin the screwthreads and the plate, and a va ve springpressed against the valve-seat.

5. A carbureter including a reservoir, a vaporizing tube extending from the side of the reservoir horizontally and thence vertically therein, the upper portion of the tube being larger diametrically than the lower portion thereof, an annular cover seated upon the reservoir and also upon the tube,afeeding and vaporizin head mounted in the larger portion of the tu e, an air-inlet and vaporizing tubepart extending through the cover and secured in the larger portion of the vaporizing tube, a valve-case on the air-inlet tube part and having a rturas therein, an air-inlet valve moun in the valve-case, a nut on the air-inlet tube art seated on the cover, and aninlet to a it liquid to thereservoir.

6. A carbureter including a reservoir, 9. vaporizing tube in the reservoir comprising a ared portion and a cylindrical portion extending from the flared portion, the cylindrical portion having screw-threads therein, an annular cover seated on the reservoir and also on the cylindrical portion of the tube, and an adjustable air-inlet and va orizing tubepart extendingthrough the annu ar cover and having a bell-shaped end that has screw-threads thereon en ging the screwthreads of the cylindrica portion, the adjustable tube part having screw-threads on the main portion thereof, the bell-shaped end being opposite to the daring portion; a nut on t e main portion of the adjustable tube part engaging the screw-threads thereof and seated on the annular cover, and a tically therein, the upper portion of the tube being larger diametrically thanthe lower portion t ereof, an annular cover seated upon the reservoir and also 11 on the tube, a feeding and vaporizing been mounted in the larger portion of the tube part, anairinlet and vaporizing tube extending through the cover and secured in the larger portion of the vaporizin tube,'a valve-case on the said air-inlet tu part an' air-inlet valve mounted in the valve-case, a nut on the said air-inlet tube part seated onthe cover, a le- 'ver pivoted in the reservoir and having two arms that extend at opposite sides of the vertical portion of the vaporizing tube, an inlet valve in the reservoir connected with the lever, and an annular float in the reservoir extending aboutsaid larger portion of t-he vaporizing tube upon the two arms of the lever.

in presence 0 two witnesses.

EVERT P. BROOKS.

Witnesses:

WILLIAM E. Voe'r,

CHARLES Gmaou.

11 7 In testimonv whereof, I afiixmy signature 

